Home / 28,118,893.76-38,787,105.88-18,571,234.43

Finding the Fourth Proportional to 28,118,893.76, 38,787,105.88 and 18,571,234.43

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Solution

The fourth proportional to 28,118,893.76, 38,787,105.88 and 18,571,234.43 is: 25,617,097.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118,893.76 : 38,787,105.88 = 18,571,234.43 : x
  2. Step 2: Convert to fraction form
    28,118,893.76/38,787,105.88 = 18,571,234.43/x
  3. Step 3: Cross multiply
    28,118,893.76x = 38,787,105.88 × 18,571,234.43
  4. Step 4: Simplify right side
    28,118,893.76x = 720,324,435,918,347.88
  5. Step 5: Solve for x
    x = 720,324,435,918,347.88/28,118,893.76
  6. Step 6: Final answer
    x = 25,617,097.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.